ipvs: fix dst_lock locking on dest update
commit ff75f40f upstream. Fix dst_lock usage in __ip_vs_update_dest. We need _bh locking because destination is updated in user context. Can cause lockups on frequent destination updates. Problem reported by Simon Kirby. Bug was introduced in 2.6.37 from the "ipvs: changes for local real server" change. Signed-off-by:Julian Anastasov <ja@ssi.bg> Signed-off-by:
Hans Schillstrom <hans@schillstrom.com> Signed-off-by:
Simon Horman <horms@verge.net.au> Cc: Simon Kirby <sim@hostway.ca> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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